Page:Euclid's Elements 1714 Barrow translation.djvu/493
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481
REgular Solids are ſaid to be compoſed and mix'd when each of them is transformed into other Solids, keeping ſtill the form, number and inclination of the baſes, which they before had to one another; ſome of which yet are transformed into mix'd Solids, and other ſome into ſimple.